CVE-2026-76800: DeDeCMS select_media_post.php unrestricted upload

Severity: medium (CVSS 6.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-20 · updated 2026-10-27
Weakness: CWE-284

Description

A flaw has been found in DeDeCMS 3. Affected by this vulnerability is an unknown functionality of the file /include/dialog/select_media_post.php. Executing a manipulation of the argument uploadfile can lead to unrestricted upload. The attack can be executed remotely. The exploit has been published and may be used.

Affected products

DedeCMS: 3

References

https://uvxbywu62qm.feishu.cn/wiki/TKqDwJGYaiBVXpk3EtFcdjRDnsg?from=from_copylink
https://vuldb.com/cve/CVE-2026-76800
https://vuldb.com/submit/880081
https://vuldb.com/vuln/393317
https://vuldb.com/vuln/393317/cti

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